Abstracts

Standard

A uniform procedure for making corona (partial discharge) measurements by electrical means on electronic transformers is presented. Methods of applying voltage stress, the use of a sine-wave voltage to simulated DC and AC combinations, the types and limitations of voltage stresses encountered, and the acceptable limits of discharge pulse energy are included. Recommended test conditions and the need for negotiation of special tests are discussed. Test apparatus and calibration are described. The aim is to establish a common ground of understanding between transformer and systems design engineers and transformer manufacturers in the development of service and performance requirements.<>

Document History

September 18, 2006
- Society of Motion Picture and Television Engineers

This standard describes the carriage of VBI data and all ANC packets (HANC and VANC) in an MXF file. This standard supports standard definition television and high-definition television for 8-bit and 10-bit digital component systems. This standard also defines the encoding of additional information ...

A uniform procedure for making corona (partial discharge) measurements by electrical means on electronic transformers is presented. Methods of applying voltage stress, the use of a sine-wave voltage to simulated DC and AC combinations, the types and limitations of voltage stresses encountered, and t...

This guide covers the detection of corona and the measurement of corona magnitude in electronics transformers. Test conditions, terminology, test apparatus, calibration, and test requirements are included.<>

Arcing, partial discharge, and localized overheating in the insulation system of transformers result in chemical decomposition of the insulating oil and other insulating materials. This may generate various gases, some of which are combustible. Typically, gases are generated in the oil and then...